Turtle Rock 1.0 Turtle Rock Studios

phil robb, co-founder of turtle rock.

turtle rock studios officially founded in 2002. team of 6 people had limited resources set work space in booth s garage. name turtle rock derived name of neighbourhood booth lived. team expanded studio , rented office, , continued development of condition zero. game officially released in 2004. satisfied work done turtle rock, valve continued contract them work on xbox version of counter-strike, next installment of series, counter-strike: source, , half-life 2: deathmatch. upon release of source, company wanted work on new game, , gained support valve. team later chose design first-person wizard combat game.

as team had developed competitive multiplayer games before, wanted design game encouraged , supported co-operative gameplay between players; game allow family , friends play instead of against each other, citing secret of mana example. team decided use source code counter-strike develop mod called terror-strike, scenario players fight against bots, equipped knives , act zombies. changed texture of game create gritty, dark atmosphere. not conceived full-budget project @ time. meanwhile, wizard combat game scrapped team considered project over-complicated , geeky ; decided use cancelled project prototype work on zombie game. idea of developing zombie game grew after team watched 28 days later, critically acclaimed zombie film. film helped team brainstorm ideas zombie game. after that, team decided remove counter-strike content , started developing zombie game, in players have plant zombie bait , kill zombies present in level. focus later shifted evacuating , surviving in zombie-infested area. project later presented valve, helped game s funding , publishing. project s name left 4 dead, , development began in 2005. title officially announced on november 20, 2006, , released in november 2008 microsoft windows , xbox 360.